templates section done

Reviewed-on: #299
Reviewed-by: Wojciech Szewczyk <szewczyw@noreply.example.com>

Backend-libXML/Parser.py

@@ -79,9 +79,11 @@ def xpath(source: str, xpath: str) -> str:
     else:
         result_string = ""
         for e in result:
-            result_string += etree.tostring(e, pretty_print=True).decode() + "\n"
-        return result_string, "node"
-
+            if isinstance(e, etree._Element):
+                result_string += etree.tostring(e, pretty_print=True).decode() + "\n"
+            else:
+                result_string += str(e) + "\n"
+    return result_string, "node"
 
 
 def xsd(source: str, xsd: str) -> bool:

Backend/tools-services/src/main/java/com/r11/tools/xml/Xalan.java

@@ -61,6 +61,13 @@ public class Xalan implements XmlEngine{
         return nodeType == Node.CDATA_SECTION_NODE || nodeType == Node.TEXT_NODE;
     }
 
+    private boolean isAttributeNode(Node n) {
+        if (n == null)
+            return false;
+        short nodeType = n.getNodeType();
+        return nodeType == Node.CDATA_SECTION_NODE || nodeType == Node.ATTRIBUTE_NODE;
+    }
+
     @Override
     public String processXSLT(XMLMultipleFilesData[] data, String transform) throws Exception {
         throw new UnsupportedOperationException("Xalan does not support multiple files XSLT processing");
@@ -101,7 +108,10 @@ public class Xalan implements XmlEngine{
                     for (Node nn = n.getNextSibling(); isTextNode(nn); nn = nn.getNextSibling()) {
                         resultString.append(nn.getNodeValue());
                     }
-                } else {
+                } else if (isAttributeNode(n)) {
+                    resultString.append(n.getNodeValue());
+                }
+                else {
                     ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                     serializer.transform(new DOMSource(n), new StreamResult(new OutputStreamWriter(outputStream)));
                     resultString.append(outputStream);

Frontend/src/components/xml/XmlOutputFieldComponent.vue

@@ -18,6 +18,7 @@ const result = ref('');
 
 let enginesForCurrentTool = ref(["saxon", "xalan", "libxml"]);
 
+const allVersionsOfXpath = ["2.0", "3.0", "3.1"];
 const allVersions = ["1.0", "2.0", "3.0", "3.1"];
 let versionsForCurrentEngine = ref([""]);
 
@@ -73,7 +74,7 @@ function changeAvailableVersionsOfXPath() {
     if(engine.value == "xalan" || engine.value == "libxml")
         versionsForCurrentEngine.value = ["1.0"];
     else if (engine.value == "saxon")
-        versionsForCurrentEngine.value = allVersions;
+        versionsForCurrentEngine.value = allVersionsOfXpath;
 }
 
 function selectDefaultEngine() {

Frontend/src/components/xml/tooltips/TooltipEntryComponent.vue

@@ -7,6 +7,8 @@ const props = defineProps({
     tool:{type: String, required:true}
 })
 
+const activeIndex = ref<number | null>(null)
+
 function toggleTooltips() {
     isEntryHidden.value = !isEntryHidden.value;
 }
@@ -20,7 +22,15 @@ function entryHasArguments() {
 }
 
 function entryHasExamples() {
-    return props.entryData.examples.length > 0;
+    if("examples" in props.entryData){
+      return props.entryData.examples.length > 0;
+    }
+}
+
+function entryHasXsltExamples() {
+    if("xsltExamples" in props.entryData){
+      return props.entryData.xsltExamples.length > 0;
+    }
 }
 
 function interpretXPathIndicators( elementType:string ):string {
@@ -47,7 +57,7 @@ function interpretXPathIndicators( elementType:string ):string {
 
 <template>
     <div class="flex p-1 flex-col rounded-xl border border-slate-400 dark:border-slate-400">
-        <button :class="{ 'mb-2' : !isEntryHidden }" class="dark:text-slate-100 hover:font-bold" @click="toggleTooltips()">{{ props.entryData.name }}</button>
+        <button :class="{ 'mb-2' : !isEntryHidden }" class="dark:text-slate-100 hover:font-bold overflow-auto" @click="toggleTooltips()">{{ props.entryData.name }}</button>
         <div id="content" :class="{'hidden' : isEntryHidden}" class="w-full p-2 rounded-xl dark:text-white bg-indigo-50 dark:bg-slate-800" >
             <h4 class="text-xl mb-2 font-bold text-justify">Description</h4>
             <span class="text-justify">
@@ -55,6 +65,29 @@ function interpretXPathIndicators( elementType:string ):string {
                     {{ props.entryData.description }}
                 </p>
             </span>
+
+            <br/><h4 class="text-xl mb-2 font-bold text-justify">Examples:</h4>
+            <table v-if="entryHasXsltExamples()" class="w-full border">
+                <tr>
+                  <th class="font-normal">Use of {{ props.entryData.name }} example:</th>
+                </tr>
+                <tr v-for="(ex, index) in props.entryData.xsltExamples" :key="index">
+                    <td
+                        class="relative font-bold cursor-pointer bg-white p-4 border hover-effect"
+                        @mouseenter="activeIndex = index"
+                        @mouseleave="activeIndex = null"
+                    >
+                        <code>{{ ex.xslt }}</code>
+                      <transition name="fade">
+                        <div v-if="activeIndex === index" class="popup">
+                          <code>{{ ex.xslt }}</code>
+                        </div>
+                      </transition>
+                    </td>
+                </tr>
+            </table>
+            <br><span class="font-bold flex justify-center items-center w-full h-full">Hover over the text to enlarge!</span>
+
             <div id="xpathArgTooltip" v-if="tool == 'xpath'"> 
                 <h4 class="text-xl mt-4 mb-2 font-bold">Args and Output</h4>
             <table v-if="entryHasArguments()" class="w-full">

Frontend/src/style.css

@@ -47,3 +47,32 @@
 .disabled-tab {
     @apply py-2 px-3 h-fit text-slate-400 border-t border-l border-r border-slate-300 rounded-t-2xl bg-gradient-to-r from-gray-200 to-gray-300 dark:from-gray-700 dark:to-gray-800 pointer-events-none opacity-50;
 }
+
+.hover-effect {
+    @apply border-black bg-blue-50;
+    font-size: 10px;
+}
+
+.hover-effect:hover {
+    @apply bg-blue-200;
+}
+
+.popup {
+    @apply fixed top-1/2 left-1/2 bg-blue-400 text-white p-5 rounded-lg shadow-lg text-sm;
+    transform: translate(-30%, -35%) scale(1.3) translate3d(-30%, 0px, 0px);
+    z-index: 1000;
+    white-space: pre-wrap;
+}
+
+.fade-enter-active {
+    @apply duration-500 opacity-100;
+}
+
+.fade-leave-active {
+    animation: fadeOut 0.5s ease-in-out 800ms forwards;
+}
+
+@keyframes fadeOut {
+    0% { opacity: 1; }
+    100% { opacity: 0; }
+}